【Ten Years of Rapid Development in Chemical Processing Equipment】NPS18-CL300 Hydrogen Ball Valve with the Largest Diameter from 1976 to 2022

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This post was last edited by Desert Fish on 2023-1-1 at 19:23. Witnessing the ten-year rapid development of chemical processing equipment, we celebrate the prosperity and strength of modern China. Wishing everyone a happy New Year and peace, health, and well-being for their families. This is just an initial contribution; more participation from everyone will make the discussions more lively. Haichuan becomes even better with your involvement – we welcome everyone to engage more in discussions on this forum. ------------------------------------------------- In September 2022, the large-diameter hydrogen balloon valves designed and manufactured by Jiangsu Shentong Company passed the inspections conducted by a third-party supervision company, and the products were sent to the project site. These hydrogen balloon valves were used in a domestic green hydrogen demonstration project, which involves building a 300MW photovoltaic power plant in the Gobi desert in the northwest to supply electricity for 52 alkaline electrolyzers used in a green hydrogen plant to produce hydrogen through water electrolysis. Upon completion, the project is expected to reduce carbon dioxide emissions by 485,000 tons per year. Once completed, this project will cover the entire industrial chain for photovoltaic power generation, transmission of green electricity, production of hydrogen from green electricity, storage of green hydrogen, transportation of green hydrogen, and its use in refining processes. It will serve as a model for achieving the \"dual carbon\" goals, and it holds great significance for promoting the rapid development of the domestic hydrogen production equipment industry. The valves for these hydrogen balloons are specified as NPS18-CL300, representing the largest diameter hydrogen balloon valves currently manufactured in China. The technical staff at Jiangsu Shentong Company use 3D design and finite element analysis to ensure that the valve’s structure and strength meet the requirements of its operating conditions. The valve body features a three-stage forging structure, and its metal surface is coated with ENP, which effectively prevents hydrogen from penetrating the metal. The sphere and the valve seat sealing surfaces are subjected to a special hardening process, and the sealing surfaces are precisely ground to achieve a mirror-like finish, ensuring the valve’s sealing performance.